I've been toying with the idea of automating TLH at Vanguard for a while.
I just finished the most basic functionality inside a Userscript and I am sharing it just in case someone else is interested.
What it does so far:
1) When you visit https://personal.vanguard.com/us/XHTML/ ... mary.xhtml it shows a TLH button next to the Buy | Sell. (Sample)
2) When you click it, it will go through all the instrument lots and sum the reds. (Sample)
I wrote the logic as a Tampermonkey script (https://tampermonkey.net/).
You will need to install the plugin to your browser and add the following script:
Code is licensed under MIT:
Copyright 2018 car733
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.